This game is great, huge dungeons,forests,and cities. Tons of content,stunning graphics, and AI.
Today I got out good old Morrowind (elder scrolls III) and popped it in. It felt familiar..yet obsolete at the same time. Morrowind was a great game, it just had a lack of content. I had done nearly every quest in the game several months after it came out.
Another thing i like about oblivion is how the main quest is so challenging.
I got hung up on the part in the beginning where you are to decipher the meaning of a book( i admit, i used a faq for that part ONLY :P). I encourage anyone looking to buy a game for the xbox 360 to check this out. This is honestly the reason i bought my 360.